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Matt Bostock 89a2f21f45 Always try to return smartmon_device_info metric (#663) 
* Always try to return smartmon_device_info metric

Sometimes the 'model family' field is not returned by `smartctl' because
a disk is not in the disk database for the version of smartmontools
installed on the system.

In those cases, the device model and serial number is still returned (at
least as far as I have observed.

Re-work the logic to prefer the 'vendor' field first, and if not
present, always output a `smartmon_device_info` metric even if some
labels have empty values.

On the box I'm testing this on, where previously no metric was returned,
it now returns:

    # HELP smartmon_device_info SMART metric device_info
    # TYPE smartmon_device_info gauge
    smartmon_device_info{disk="/dev/sda",type="sat",model_family="",device_model="INTEL REDACTED",serial_number="REDACTED",firmware_version="REDACTED"} 1
    smartmon_device_info{disk="/dev/sdb",type="sat",model_family="",device_model="INTEL REDACTED",serial_number="REDACTED",firmware_version="REDACTED"} 1
    smartmon_device_info{disk="/dev/sdc",type="sat",model_family="",device_model="INTEL REDACTED",serial_number="REDACTED",firmware_version="REDACTED"} 1
    smartmon_device_info{disk="/dev/sdd",type="sat",model_family="",device_model="INTEL REDACTED",serial_number="REDACTED",firmware_version="REDACTED"} 1
    smartmon_device_info{disk="/dev/sde",type="sat",model_family="",device_model="INTEL REDACTED",serial_number="REDACTED",firmware_version="REDACTED"} 1
    smartmon_device_info{disk="/dev/sdf",type="sat",model_family="",device_model="INTEL REDACTED",serial_number="REDACTED",firmware_version="REDACTED"} 1

* Add trailing newline

Because POSIX:
https://stackoverflow.com/a/729795
 		2017-08-31 18:00:42 +02:00
..
README.md Add text_collector_examples README 2016-12-22 22:57:14 +00:00
ntpd_metrics.py Add ntpd metrics from ntpq rv 2017-02-14 16:20:53 +01:00
smartmon.sh Always try to return smartmon_device_info metric (#663) 2017-08-31 18:00:42 +02:00
storcli.py Add StorCli text collector example script 2016-12-22 22:55:58 +00:00

README.md

Text collector example scripts

These scripts are examples to be used with the Node Exporter Textfile Collector.

For more information see: https://github.com/prometheus/node_exporter#textfile-collector